Cock.



E. F. GOUDARU.

-cocnl APPLICATIQN FILED IUkY 27, 191-4.

Patented Dee. 28, 1915.

z SHEETS-sun 1.

E. I?.l GGUDARD.

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APPLICATION FILED IULY 27.1914.

www me. 28, m15.'

2 SHEETS--SHEET 2.

EDMOND FLIX GOUDARD, OF NEUILLY-SUR-SEINE, FRANCE.

COCK.

` Specification of Letters Patent.

l Patented lDec. 2e, tutti..

Application ined .Tiny 27, 1914i. seriaino. 853,376.

To all 'whom t may concern .1'

Be it known that ll, EDMOND FLIX GOUD- '.ARD, citizen of the Republic .of France,

exactly to cocks for Aclosing conduits, and it concerns more particularly the cocks used asV throttle valves in carbiireters for. oil engines. The invention has for its main object to avoid the noise produced, when such devices are nearly in their closed position, by thev fluid passing through them.v

-The invention mainly consists lin constructing the plug of the said devices in suchI a manner that the acti-ve part or parts of the said plug (if the said plug comprises more thanone active part, t'. e. an active part for eacli port in the shell. of the said devices) have approximately the same shape as the corresponding ports ofthe containingshell of the plug. g

IThe .invention further consists in constructing in such a manner the plug of the said devices that its bearing parts be provided with an annular recess adapted to re ceive anti-frictional membersand with a movable disk for retaining said members in position; and,vin so forming either or all of said .1. annular recesses that said anti-frictional members are maintained in the said recesses should` the plug be taken away from itsl shell. Y y

The invention further consists in other features of' construction which will be hereinafter more clearly set forth and finally specified in the concluding claims.

For a clear understanding Iof the invention reference may be had to the accompanying drawings in Connection with the follow# ing description. i o

Figure lv is a longitudinal sectional View of a conduit provided with a`cock constructed according-to a first method of carrying out the invention. Fig. 2 is a cross section taken on line '2-2 of Fig. l. Fig. 3 shows a perspective view of the plug of the said cock removedA from the conduit. Fig. 4 shows a longitudinal sectional view of a conduit, taken at right angles to Fig. l, and illustrating a slightly modified construction of' cock, in accordance with the invention. Fig. 5 shows a perspective view of the plug of the cock shown in Fig. 4 and reimoved from the conduit.

It may be for instance supposed that the conduit (t shown in the drawings is the suction pipevof acarbureter and that the throtltle valve ofthe said carbureter is constituted by cock b. A part of the said conduitis so constructed as to form a shell a for the cock.A The shell z, in the preferred embodiment herein shown, is substantially cylindrical in cross-section and extends laterally or transversely ofthe conduit.

l"he plug ofthe cock comprises a cylindrlcal part Z2, the cross-section of which has 5 the same lshape as the cross-section of the ports, whichplace into communication the shell a and the conduit a; the cross-section of the cylindrical part I) is equal, orlprefei`- ably slightly greater, than the cross-section The shell re`v .vceives the cock b and has its ends closed by the circular plates a2.

of the said ports; the said cylindrical part b is further provided with a hole bo, the; axis .of which is perpendicular to the axis of the said cylindrical part. The said hole, which haspreferably the same cross-section asthe said ports, constitutes the port of the plug. Finally the cylindrical part b has its ends limited by a cylindrical surface the "axis of which is perpendicular to the planepassing through the axis of the cylindrical part I) and through the axis of the hole 60,' the said cylindrical surface having the same diameter as the internal diameter of the? shell. The plug b isfurther provided withpins b1,

the axis of vwhich coincides with the axis of the said cylindrical surface; the said pins pass through suitable holes provided in the plates a?. 'llhe said pins lpare connected to the cylindrical part by means ofa bearing part b2, which may be either, as shown in Fig. 3, cutaway in two opposite points, or better, as shown in Fig. entirely circular.

When the plug b is mounted in the shell a. and is inits closed position, and the plug is moved from the said closed position in order to be brought in its opened position, the passages obtained at the beginning of such movement, between the active parts b of the plug and the edgesvof the ports of the shell, have the form of crescents as clearly shown in Fig. 2. The sections of the said passages have consequently the greatest perimeter which it is possible to obtain, and thus the noise produced by thev fluid passing through the said passages is considerablyV reduced.

Advantageously, as shown in Figs. 4 and 5, the bearing parts b2 of the plug are each.

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formed in their ends with an annular recess t'or the reception otl anti-frictional meinbers C. f

An amnilar disk CZ, having an external-diameter the same diameter as the part Z2 and an internal diameter the same diameter as the pin b1', is tixed in such a manner against each one of the said parts b2 that it forms with the said recess a pocket groove ,520, said recesses being formed with their wall opposite said disks outwardly inclined :trom the bottom or lower wall ot' therecess so as to provide sul'istaiitially an overlying peripheral flange in said recesses to prevent the escape ot the ball bearings c from the pocket Y groove L20, and the plug is taken away from its'shell.

'The pins b1 are screw-threaded and a nut c, screwed on each one ot the said pins, allows the position ot' the disk (l to be regulated relative to the bearing parts (Z2. Preterably the nut c has a height almost equal to the width ot' the corresponding plate a2 and the said plate is provided with a hole having at least the same diameter as the greatest diameter of the nut'e. lVith such a disposition it is possible to mount the said plates at on the nuts e and to tix each one ot' the said platesI by means otl an auxiliary nut which is also screwed on the screw-tlneads of the corresponding pin b1.

It is obvious that the invention in no way limited to the methods oi' carrying it out which have been more particularly described and that it comprises also all ineditivcations which are in `the scope of the claims.

F or instance, the plug of the cock may be made in such a. manner that the two passages formed by its active parts L be of dit'- ferent sizes and even of different shapes. Further the bearing parts b2 could be provided with grooves forming a .labyrintliiadn joint.

Having now described andaseertained the nature of my said invention and 4in what manner the same may be performed, I declare that what I claimis:

l. A valve comprising a casing having a substantially cylindrical plug-.receiving opening and inlet and outlet ports coinmunicatingwith said opening and a plug rotatably mounted in said opening, said plug having apassage tlieietlirougli at a Iright angle to its axis adapted when the plug is rotated to be brought into register with said inlet and outlet ports, said plug having a portion cut away from its periphery at each endl of said passage to form from the remaining portions of its periphery a pair of diametrically arranged and substantially circular portions of greater area than said inlet and outlet ports to tit the wall of' 2. A valve comprising a` casing having in`- let and outlet ports and a plug-receiving opening at an angle to said inlet and outlet ports, a valve plug disposed iii said opening and havingl substantially circular portions formed to closely fit the wall oi the plugreceiving opening and of a greater area than said inlet and outlet ports.I bearing inembers at opposite ends of the plug and ol substantially the same diameter as said opening, means for securing the bearing members in the opposite ends ot the easing, said valve plug having a bore between said bearing ineinbei-S, and means tor rotating the plug to bring the bore ot the plug opposite said inlet and outlet ports, the substantially circular portions ot the plug being adapted to form a crescent-shaped passage at said ptsts at any point between the tull open and closed positions of the valve plug.

3. A valve ot thecharacter described coinprising a Substantially cylindrical valve easing having an inlet port'and an outlet port formed in the'side 'all thereof` a substantially/cylindrical valve plug disposed in the casing and having a bore therein adapted to communicate with said ports, means formed on the plug adapted to cooperate with the edges ot' said ports for forming a crescent shaped passage at said ports at any point between tlie full open and closed positions of the plug, the opposite ends of said cylindrical plug being formed with a rabbet, the laterally extending vwall ot the rabbet beinginclined so as tooverlie the other wall thereof` anti-frictional members received in said rabbet, spindles extending from the opposite ends of said plug, annular disks surrounding said spindles and adapted to engage said anti-frictional members` adjustable means operating through the medium ot said disks for pressing said anti-frictionalmembers against the inclined wall of the rabhet whereby the anti-frictional members may be. permanently retained in said iabbet. and means surrounding the spindle and engaging the ends of said valve casing forreinovably securing said plug in position in said casing.

In testimony whereot1 l have hereunto set my hand in presence of two subscribing witnesses. Y

EDMOND FELIX GOUDARD. lVitnesses z FLY E. PALMER, PAUL BLUM. 

